Which is an accurate description of vasco da gama? a. named the tip of africa the "cape of good hope" b. claimed parts of south america for portugal c. was the first european to see the americas d. sailed around africa and reached india

The answer was D on my test (k12). Hope this helps somehow.

loess contribute to the flooding of rivers by providing the silt that is washed into rivers and constantly raises the bed of the rivers. this elevation above the surrounding flood plains and dams allow the river to overwhelm the dams and flood thousand of square miles of neighboring flood plains.